export default function copyToClipboard(elem) {
  var targetId = "_hiddenCopyText_";
  var isInput = elem.tagName === "INPUT" || elem.tagName === "TEXTAREA";
  var origSelectionStart, origSelectionEnd;
  if (isInput) {
    target = elem;
    origSelectionStart = elem.selectionStart;
    origSelectionEnd = elem.selectionEnd;
  } else {
    target = document.getElementById(targetId);
    if (!target) {
      var target = document.createElement("textarea");
      target.style.position = "absolute";
      target.style.left = "-9999px";
      target.style.top = "0";
      target.id = targetId;
      document.body.appendChild(target);
    }
    target.textContent = elem.textContent;
  }
  var currentFocus = document.activeElement;
  target.focus();
  target.setSelectionRange(0, target.value.length);

  var succeed;
  try {
    succeed = document.execCommand("copy");
  } catch (e) {
    succeed = false;
  }
  if (currentFocus && typeof currentFocus.focus === "function") {
    currentFocus.focus();
  }

  if (isInput) {

    elem.setSelectionRange(origSelectionStart, origSelectionEnd);
  } else {
    target.textContent = "";
  }
  return succeed;
}